MvcTagHelperAttributeValueCodeRenderer.RenderAttributeValue Method

Reference

Definition

Namespace:: Microsoft.AspNetCore.Mvc.Razor

Assembly:: Microsoft.AspNetCore.Mvc.Razor.Host.dll

Package:: Microsoft.AspNetCore.Mvc.Razor.Host v1.0.0

Package:: Microsoft.AspNetCore.Mvc.Razor.Host v1.1.0

Important

Some information relates to prerelease product that may be substantially modified before it’s released. Microsoft makes no warranties, express or implied, with respect to the information provided here.

Called during Razor's code generation process to generate code that instantiates the value of the tag helper's property. Last value written should not be or end with a semicolon.

public:
 override void RenderAttributeValue(Microsoft::AspNetCore::Razor::Compilation::TagHelpers::TagHelperAttributeDescriptor ^ attributeDescriptor, Microsoft::AspNetCore::Razor::CodeGenerators::CSharpCodeWriter ^ writer, Microsoft::AspNetCore::Razor::CodeGenerators::CodeGeneratorContext ^ codeGeneratorContext, Action<Microsoft::AspNetCore::Razor::CodeGenerators::CSharpCodeWriter ^> ^ renderAttributeValue, bool complexValue);

public override void RenderAttributeValue (Microsoft.AspNetCore.Razor.Compilation.TagHelpers.TagHelperAttributeDescriptor attributeDescriptor, Microsoft.AspNetCore.Razor.CodeGenerators.CSharpCodeWriter writer, Microsoft.AspNetCore.Razor.CodeGenerators.CodeGeneratorContext codeGeneratorContext, Action<Microsoft.AspNetCore.Razor.CodeGenerators.CSharpCodeWriter> renderAttributeValue, bool complexValue);

override this.RenderAttributeValue : Microsoft.AspNetCore.Razor.Compilation.TagHelpers.TagHelperAttributeDescriptor * Microsoft.AspNetCore.Razor.CodeGenerators.CSharpCodeWriter * Microsoft.AspNetCore.Razor.CodeGenerators.CodeGeneratorContext * Action<Microsoft.AspNetCore.Razor.CodeGenerators.CSharpCodeWriter> * bool -> unit

Public Overrides Sub RenderAttributeValue (attributeDescriptor As TagHelperAttributeDescriptor, writer As CSharpCodeWriter, codeGeneratorContext As CodeGeneratorContext, renderAttributeValue As Action(Of CSharpCodeWriter), complexValue As Boolean)

Parameters

attributeDescriptor: TagHelperAttributeDescriptor

The TagHelperAttributeDescriptor to generate code for.

writer: CSharpCodeWriter

The CSharpCodeWriter that's used to write code.

codeGeneratorContext: CodeGeneratorContext

renderAttributeValue: Action<CSharpCodeWriter>

Action that renders the raw value of the HTML attribute.

complexValue: Boolean

Indicates whether or not the source attribute value contains more than simple text. false for plain C# expressions e.g. "PropertyName". true if the attribute value contain at least one in-line Razor construct e.g. "@(@readonly)".

Remarks

If the attribute being rendered is of the type ModelExpressionTypeName, then a model expression will be created by calling into CreateModelExpressionMethodName.

Applies to